William j



(No Model.)

4 W. J. SUMNER.

TROLLEY TRACK FROG- No. 575,770. Patented Jan. 26,, 1897.

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UNITED STATES PATENT OFFICE.

WILLIAM J. SUMNER, OF HOLYOKE, MASSACHUSETTS, ASSIGNOR TO THE COBURNTROLLEY TRACK MANUFACTURING COMPANY, OF SAME PLACE.

TROLLEY 'l'RACK FROG.

SPECIFICATION forming part of Letters Patent No. 575,770. dated January26, 1897.

Application filed a ch 25, 1896. Serial No. 584,782. (No model.)

To all whom it may concern which runways is a longitudinal slot in whichBe it known that 1, WILLIAM J. SUMNER, a the hanger to whichtrolley-wheels are hung citizen of theUnited States of America,residmoves in the usual manner. Each of said ingatI-Iolyoke, in thecounty of Hampden and arms A of the frog is formed to receive the 55State of Massachusetts, have invented new several converging ends, inthis instance, of and useful Improvements in Trolley-Tracktrolley-tracks of the above-described form, Frogs, of which thefollowing is a specificaand the under side of each of said arms hastion. a slot C therein which is continuous from the This inventionrelates to trolley-track frogs, end of each arm of the frog to theextremity 60 the object being to provide an improved conof the underside of the arm ofthe frog on struetion of such frogs forsupporting theends the opposite side thereof, as shown in Fig. 3. of several lines ofconverging trolley-tracks Consequently when the ends of four trolleyandproviding forthe proper movement of tracks B are entered within the fourarms A trolleys and their hangers from one track onto of the frog theinner ends of said tracks 00- 65 another at the intersecting point ofdifferent copy the positions relative Lo the central inlines of track;and the invention consists in tersecting point 5 of the frog shown inFig. a peculiar construction and arrangement of 3. C C C C indicate thehanger-slots of each said frog whereby it provides a support for of saidfour arms and also the said longisaid several ends of trolley-track andmeans tudinal slots in said trolley-track B. The 70 I for supportingsaid frog in position for use runways 6 of the latter extend along theopwith overhead track-lines, all hereinafter posite borders of saidslots coincidently with fully described,an d more particularly pointedthe portions of the arms A themselves, on the out in the claims.opposite borders of said slots.

In the drawings forming part ofthis speci- Referring to Fig. 3, the fourlines 8 there 75 fication, Figures 1 and 3 are respectively side shownindicate the terminating-points of the and plan views of trolley-trackfrogs of box inner ends of the four trolley-tracks B, conform embodyingmy improvements, the secnected to the frog as aforesaid, and the severaltional portion of Fig. 3 being on line 3 3, Fig. numerals 9 there shownindicate sections of 1. Fig. 2 is a sectional view of the lower parttrolley-wheel runways corresponding in form 80 of the frog on line 2 2,Fig. 1. to the said runways (5 in said trolley-track B, In the drawings,A indicates four boxwhich extend in the base of the frog between shapedor hollow extendingfromthecenthe ends of the several tracks B, which aretral portion of the frog construction, the united in the frog, to theend that the wheels openings in said arms extending from the eX- of atrolley carrier or hanger, approaching 85 tremity of one thereof at oneside of the frog the center 5 of the frog from one direction, in astraight line to the extremity of the arm will enter and follow the saiddepressions or A on the opposite side of the frog. Thus the runways 9 ator about said lines 8 and immetwo lines of track-openingsextending atright diately reenter the end of the trolley-track angles to each otherin the frog have a comin the opposite arm of the frog. In practice 90mon intersecting point at 5, Fig. 3. The form the separation of the endsof said track B of the track-openings in said arms Amay be from eachother in the frog is inconsiderable such as to receive any desired formof trolleyand the passage of the trolley-wheels from track. In thepresent instance, however, the end of one track into the other acrossthe trolley-track sections 13' are shown in conneccenter of the frog, asstated, is not attended 95 tion with the several arms of said frog. Saidby any inconvenient obstacle to the movetrackB represents a well-knownform of sheetment of the trolley-carrier. metal track having a top 3 andtwo sides l 4E The above-described trolley-track frog is at right anglesto said top, and two runways provided with overhanging flanges D, one on6 6 for the trolley-wheels, consisting of porthe end of each of saidarms A, or with other 100 tions of the said sides at their lower edgessuitable means for securing the frogin asusbent inwardly in circularform, between pended or overhead position. Each of said flanges D isprovided with a bolt-hole, as shown, through which a sustaining-bolt maybe passed in any ordinary way.

Having thus described my invention, What I claim, and desire to secureby Letters Patcut, is-- 1. A trolley-track frog made in a singlecasting, and havinghollowsupports or extensions extending outwardly fromopposite sides to receive the ends of intersecting trolleytracks, eachextension or support having a slot through its base, atrolley-Wheelrunway upon each sideof the slot, and a protecting flange D upon itstop, the frog being provided with a central chamber covered over at itstop,

